A 500 g ball dropped from a height of 20 m hits the ground and rebounds to a height of 5 m. What is the magnitude of the impulse delivered by the ground to the ball? ()
Answer and explanation
Correct answer: C.
Speed just before impact: downwards. Speed just after rebound: upwards. Impulse .
Practise more Physics: Mechanics, Waves and Thermodynamics.
Free questions with an explanation for every one, and full timed SIMAK UI mock tests.
More Physics: Mechanics, Waves and Thermodynamics questions
- A 2 kg block slides down an incline of angle with a constant speed. What is the coefficient of kinetic friction between t…
- A car of mass 1200 kg travelling at 20 m/s brakes uniformly to a stop over a distance of 40 m. What is the magnitude of the net braking forc…
- A simple pendulum has period on Earth. If its length is multiplied by 4 and it is taken to a planet where gravitational acceleration is…
- An ideal gas undergoes an isobaric expansion at , increasing its volume from to …
- A sound wave travels from air into water. Which wave property remains completely unchanged during this transition?
- A heat engine operates between temperatures of and . If it absorbs of heat from the hot reservo…